JPS55144516A - Temperature sensor - Google Patents
Temperature sensorInfo
- Publication number
- JPS55144516A JPS55144516A JP5386179A JP5386179A JPS55144516A JP S55144516 A JPS55144516 A JP S55144516A JP 5386179 A JP5386179 A JP 5386179A JP 5386179 A JP5386179 A JP 5386179A JP S55144516 A JPS55144516 A JP S55144516A
- Authority
- JP
- Japan
- Prior art keywords
- light
- substance
- container
- temperature
- transparent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
PURPOSE: To provide a highly waterproof temperature sensor useful to detect the temperature of a bath or the like, by filling a container with a termosensitive substance which changes from an opaque state into a transparent state at a detected temperature and by inserting a light irradiation member for irradiating light upon the thermosensitive substance and a light receiving member which receives the incident light from the light irradiation member, into the container.
CONSTITUTION: A temperature sensor comprises an enclosed container 1 made of a material of high thermal conductivity, a reflector 2 placed on the inside surface of the bottom of the container, a pair of optical fiber units 5, 6, etc. A thermosensitive substance 3 such as heptadecylic acid, which changes from an opaque solid into a transparent liquid when the temperature of the substance exceeds its boiling point of about 60°C, is filled in the enclosed container 1. The substance turns transparent around an objective detected temperature. Light emitted from a light emitting diode LED is transmitted through the optical fiber unit 5. When the thermosensitive substance 3 is transparent, the light is conducted to the reflector 2 and transmitted through the substance and the other optical fiber unit 6 and reaches a phototransistor PT which detects the light.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54053861A JPS5937774B2 (en) | 1979-04-28 | 1979-04-28 | temperature sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54053861A JPS5937774B2 (en) | 1979-04-28 | 1979-04-28 | temperature sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55144516A true JPS55144516A (en) | 1980-11-11 |
JPS5937774B2 JPS5937774B2 (en) | 1984-09-12 |
Family
ID=12954550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54053861A Expired JPS5937774B2 (en) | 1979-04-28 | 1979-04-28 | temperature sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5937774B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63502531A (en) * | 1986-02-12 | 1988-09-22 | サウンデック・オ−・ワイ | Fiber optic thermometer or temperature warning device |
CN104535219A (en) * | 2014-12-22 | 2015-04-22 | 深圳市朗特电子有限公司 | Liquid temperature detection system and liquid temperature detection method |
-
1979
- 1979-04-28 JP JP54053861A patent/JPS5937774B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63502531A (en) * | 1986-02-12 | 1988-09-22 | サウンデック・オ−・ワイ | Fiber optic thermometer or temperature warning device |
US4906107A (en) * | 1986-02-12 | 1990-03-06 | Soundek Oy | Fibre-optic thermometer or temperature alarm device |
CN104535219A (en) * | 2014-12-22 | 2015-04-22 | 深圳市朗特电子有限公司 | Liquid temperature detection system and liquid temperature detection method |
Also Published As
Publication number | Publication date |
---|---|
JPS5937774B2 (en) | 1984-09-12 |
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